# Which is longer 5 miles or 10 kilometers?

##### 1 Answer

Nov 3, 2016

#### Explanation:

The exact conversion figure is

I find it handy to use the first few terms of the Fibonacci sequence as an approximation for converting between miles and kilometers.

The Fibonacci sequence starts

#1, 1, 2, 3, 5, 8, 13, 21, 34,...#

The ratio of pairs of consecutive terms tends towards the Golden ratio

Hence we find